Iron(III) Salt-Catalyzed Nazarov Cyclization/Michael Addition of Pyrrole Derivatives

2008 ◽  
Vol 351 (1-2) ◽  
pp. 123-128 ◽  
Author(s):  
Masamune Fujiwara ◽  
Motoi Kawatsura ◽  
Shuichi Hayase ◽  
Masato Nanjo ◽  
Toshiyuki Itoh
Keyword(s):  
Michael Addition ◽  
Nazarov Cyclization ◽  
Pyrrole Derivatives

ChemInform Abstract: Iron(III) Salt Catalyzed Nazarov Cyclization/Michael Addition of Pyrrole Derivatives.

ChemInform ◽  
2009 ◽  
Vol 40 (23) ◽  
Author(s):  
Masamune Fujiwara ◽  
Motoi Kawatsura ◽  
Shuichi Hayase ◽  
Masato Nanjo ◽  
Toshiyuki Itoh
Keyword(s):  
Michael Addition ◽  
Nazarov Cyclization ◽  
Pyrrole Derivatives

Tandem Nazarov Cyclization−Michael Addition Sequence Catalyzed by an Ir(III) Complex

2006 ◽  
Vol 128 (16) ◽  
pp. 5312-5313 ◽  
Author(s):  
Mesfin Janka ◽  
Wei He ◽  
Inga E. Haedicke ◽  
Frank R. Fronczek ◽  
Alison J. Frontier ◽  
...  
Keyword(s):  
Michael Addition ◽  
Nazarov Cyclization

scholarly journals Tandem Nazarov Cyclization—Michael Addition Sequence Catalyzed by an Ir(III) Complex.

ChemInform ◽  
2006 ◽  
Vol 37 (36) ◽  
Author(s):  
Mesfin Janka ◽  
Wei He ◽  
Inga E. Haedicke ◽  
Frank R. Fronczek ◽  
Alison J. Frontier ◽  
...  
Keyword(s):  
Michael Addition ◽  
Nazarov Cyclization

Gold self-relay catalysis for accessing functionalized cyclopentenones bearing an all-carbon quaternary stereocenter

2021 ◽  
Author(s):  
Wen-Juan Hao ◽  
Fan-Tao Meng ◽  
Jing-Long Chen ◽  
Xiao-Yan Qin ◽  
Tian-Shu Zhang ◽  
...  
Keyword(s):  
Michael Addition ◽  
Nazarov Cyclization ◽  
Quaternary Stereocenter

A new gold(I) self-relay catalysis consisted of 3,3-rearrangement, Nazarov cyclization and Michael addition cascade of 1,3-enyne acetates with aurones and their derived azadienes is reported, and used to produce a...

Ir(III)-Catalyzed Tandem Nazarov Cyclization/Michael Addition

Synfacts ◽  
2006 ◽  
Vol 2006 (7) ◽  
pp. 0683-0683
Author(s):  
A. Frontier ◽  
R. Eisenberg ◽  
M. Janka ◽  
W. He ◽  
I. Haedicke ◽  
...  
Keyword(s):  
Michael Addition ◽  
Nazarov Cyclization

Fatty acid ketodienes and fatty acid ketotrienes: Michael addition acceptors that accumulate in wounded and diseased Arabidopsis leaves

2000 ◽  
Vol 24 (4) ◽  
pp. 467-476 ◽  
Author(s):  
Sabine Vollenweider ◽  
Hans Weber ◽  
Stephanie Stolz ◽  
Aurore Chetelat ◽  
Edward E. Farmer
Keyword(s):  
Fatty Acid ◽  
Michael Addition

Ligand-Enabled γ-C(sp3)–H Olefination of Free Carboxylic Acids

2020 ◽  
Author(s):  
Kiron Kumar Ghosh ◽  
Alexander Uttry ◽  
Francesca Ghiringhelli ◽  
Arup Mondal ◽  
Manuel van Gemmeren
Keyword(s):  
Reaction Mechanism ◽  
Carboxylic Acids ◽  
Michael Addition ◽  
Kinetic Studies ◽  
Wide Range ◽  
Palladium Catalyzed

We report the ligand enabled C(sp3)–H activation/olefination of free carboxylic acids in the γ-position. Through an intramolecular Michael-addition, δ-lactones are obtained as products. Two distinct ligand classes are identified that enable the challenging palladium-catalyzed activation of free carboxylic acids in the γ-position. The developed protocol features a wide range of acid substrates and olefin reaction partners and is shown to be applicable on a preparatively useful scale. Insights into the underlying reaction mechanism obtained through kinetic studies are reported.<br>

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